Geek out on anatomy with this brief overview on your spine. We’ll discuss the parts of the spine, how they interact, and what causes back abnormalities.
How does the spine move?
The spinal vertebra form facet joints, and just like any other joint in the body, we must put an appropriate amount of stress on them to promote strength and range of motion. The facet joints are a type of synovial joint, a capsule formed by fascia, tendons, and ligaments. The joint contains glycosaminoglycans, one of which is a called hyluronic acid. Once the joint is stimulated by movement, it releases hyluronic acid that hydrates our tissues, including the tissues around the spine.
When we manipulate the spine, the intervertebral discs also receive pressure and stress. The disks are made of a particular type of cartilage. It accounts for 25% of the length of the spine!
The outside of the disc is a stronger fibrous substance, while the inside is more of a jelly-like substance. As the spine receives pressure from our twists, the gel moves inside the more fibrous outer disc and redistributes itself to absorb the impact of the pressure. While a person ages, the inner gel loses moisture and the spinal discs become more rigid and less resilient.
Twisting, bending, and strengthening of the back may provide an appropriate amount of stress for the back. It encourages healthy facet joints and discs to relieve pressure on the spine.
What causes curvatures of the spine?
The curvatures of the spine typically seen with lordosis and kyphosis are caused by the shape of the vertebrae. Scoliosis is idiopathic (no defined cause). Thinning of the vertebrae often cause the shape to change. In my opinion, the best thing you can do to buffer back problems is performing plenty of weight bearing exercise and stretching. Personally, it helped me overcome a lot of back pain from scoliosis.